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Related papers: Predictions for Diffractive $\phi$ Meson Productio…

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In this letter we update our predictions for exclusive $J/\Psi$ and $\Upsilon$ photoproduction in proton-proton and nucleus - nucleus collisions at the Run 2 LHC energies obtained with the color dipole formalism and considering the impact…

High Energy Physics - Phenomenology · Physics 2017-03-22 V. P. Goncalves , B. D. Moreira , F. S. Navarra

The comparison of $J/\psi$ photoproduction data in the inelastic region with theoretical predictions based on the NRQCD approach has remained somewhat ambiguous and controversial, in particular at large values of the inelasticity variable…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. Beneke , M. Krämer , M. Vänttinen

The cross section of the $D^*$-meson diffractive photoproduction at the HERA collider has been calculated in the framework of perturbatively motivated model for the different kinematic regions. The camparison between the different Pomeron…

High Energy Physics - Phenomenology · Physics 2014-11-17 A. V. Berezhnoy , V. V. Kiselev , I. A. Korzhavina , A. K. Likhoded

Differential dijet cross sections in diffractive deep-inelastic scattering are measured with the H1 detector at HERA using an integrated luminosity of 51.5 pb-1. The selected events are of the type ep --> eXY, where the system X contains at…

High Energy Physics - Experiment · Physics 2012-08-27 H1 Collaboration

Using a recently proposed factorization hypothesis for semi-inclusive hard processes in QCD, one can study, in principle, the diffractive production of the Standard Model Higgs boson at LHC using only, as input, $ep$ diffractive…

High Energy Physics - Phenomenology · Physics 2009-10-28 D. Graudenz , G. Veneziano

Continuing our previous study of Deeply Virtual Meson Production (DVMP) at twist-3 accuracy, we derive compact expressions for all helicity amplitudes. We perform a phenomenological analysis of the helicity-amplitude ratio…

High Energy Physics - Phenomenology · Physics 2026-03-27 Renaud Boussarie , Luigi Delle Rose , Michael Fucilla , Alessandro Papa , Lech Szymanowski , Samuel Wallon

Results on hard diffraction from CDF are reviewed with emphasis on the determination of the diffractive structure function of the (anti)proton from single diffractive and double Pomeron exchange dijet production. Comparison of the…

High Energy Physics - Experiment · Physics 2010-05-12 Konstantin Goulianos

The double-diffractive production of chi_c and chi_b mesons, with a rapidity gap on either side, is studied, using both the Regge formalism and the perturbative QCD approach. Due to the rather low scale, the exclusive double-diffractive…

High Energy Physics - Phenomenology · Physics 2011-01-27 V. A. Khoze , A. D. Martin , M. G. Ryskin , W. J. Stirling

We use perturbative QCD, beyond the leading $\ln Q^2$ approximation, to show how measurements of diffractive $J/\psi$ production at HERA can provide a sensitive probe of the gluon density of the proton at small values of Bjorken $x$. We…

High Energy Physics - Phenomenology · Physics 2008-02-03 M. G. Ryskin , R. G. Roberts , A. D. Martin , E. M. Levin

We propose a new approach for the Higgs boson production by Double Pomeron Exchange (DPE) in the Deeply Virtual Compton Scattering, where a color dipole interacts diffractively with the proton by DPE. Applying it to Peripheral Collisions,…

High Energy Physics - Phenomenology · Physics 2009-10-15 M. B. Gay Ducati , G. G. Silveira

We demonstrate that the distinctive features of the forward differential cross section of diffractive leptoproduction of a vector meson can be legitimately calculated in perturbative QCD in terms of the light-cone $q \bar q$ wave function…

High Energy Physics - Phenomenology · Physics 2009-09-25 Stanley J. Brodsky , L. Frankfurt , J. F. Gunion , A. H. Mueller , M. Strikman

Diffractive scattering of $\gamma^* p \to X + N$, where $N$ is either a proton or a nucleonic system with $M_N~<~4$~GeV has been measured in deep inelastic scattering (DIS) at HERA. The cross section was determined by a novel method as a…

High Energy Physics - Experiment · Physics 2012-08-27 ZEUS Collaboration

We calculate the cross section for the production of two jets with large transverse momenta $\kf^2$ in DIS diffractive dissociation for both transverse and longitudinally polarized photons. The scale which defines the hardness of the…

High Energy Physics - Phenomenology · Physics 2014-11-17 J. Bartels , H. Lotter , M. Wuesthoff

A two-component model is developed for diffractive electroproduction of $\rho^0$, $\phi$ and $\jpsi$, based on non-perturbative and perturbative two-gluon exchange. This provides a common kinematical structure for non-perturbative and…

High Energy Physics - Phenomenology · Physics 2009-11-07 A Donnachie , J Gravelis , G Shaw

Multiple interaction models satisfying $s$-channel unitarity predict that, in contrast to inelastic processes, factorization is violated in diffractive processes. The size of this effect can be characterized in terms of the rapidity gap…

High Energy Physics - Phenomenology · Physics 2007-05-23 F. W. Bopp , R. Engel , J. Ranft , A. Rostovtsev

We compute diffractive structure functions for both protons and nuclei in the framework of Color Glass Condensate models with impact parameter dependence. These models have previously been shown to provide good agreement with inclusive F_2…

High Energy Physics - Phenomenology · Physics 2009-01-14 H. Kowalski , T. Lappi , C. Marquet , R. Venugopalan

A measurement is presented of single- and double-differential dijet cross sections in diffractive deep-inelastic $ep$ scattering at HERA using data collected by the H1 experiment corresponding to an integrated luminosity of 290 pb^{-1}. The…

High Energy Physics - Experiment · Physics 2014-12-04 H1 Collaboration

Production of D*+/-(2010) mesons in diffractive deep inelastic scattering has been measured with the ZEUS detector at HERA using an integrated luminosity of 82 pb^{-1}. Diffractive events were identified by the presence of a large rapidity…

High Energy Physics - Experiment · Physics 2008-11-26 ZEUS Collaboration , S. Chekanov

We study azimuthal asymmetries in diffractive J/$\psi$ production in ultraperipheral heavy-ion collisions at RHIC and LHC energies using the color glass condensate effective theory. Our calculation successfully describes azimuthal averaged…

High Energy Physics - Phenomenology · Physics 2022-07-15 James Daniel Brandenburg , Zhangbu Xu , Wangmei Zha , Cheng Zhang , Jian Zhou , Yajin Zhou

Inclusive production of D* mesons in deep-inelastic scattering at HERA is studied in the range 5 < Q^2 < 100 GeV2 of the photon virtuality and 0.02 < y < 0.70 of the inelasticity of the scattering process. The visible range for the D* meson…

High Energy Physics - Experiment · Physics 2011-10-11 Andreas W. Jung